Choosing natural gas is an environmentally responsible way to get the reliability and performance your business needs. Find out how to manage your commercial account, access billing and payments, find commercial rebates and savings specific to your industry.

We're committed to providing natural gas safely and reliably. Find safety information here to learn what to do in an emergency, safety precautions, activities for kids, and why you should call 811 before you dig.

For six decades, Nicor Gas has been serving Illinois customers with clean, safe, reliable and affordable natural gas. Learn about Nicor Gas, including our history, service area, careers, partnerships, and programs.

Additional Resources

Continue on your path toward energy efficiency.

External Resources

Installing energy efficient equipment in your home is just the first step toward a more sustainable lifestyle. Below are links to websites where others in your community, state and all over the country are reducing their carbon footprint.

Estimating Your Savings with Calculators

Please note: Savings figures are estimates only and are in no way guaranteed by the Nicor Gas Energy Efficiency Program. Estimated savings serve solely as an example of the therm and dollar savings that may be achieved by upgrading to high efficiency. Actual savings will vary, and depend on other factors not considered in these calculations. Rebates are available to eligible Nicor Gas customers for the purchase and installation of qualifying equipment. Additional requirements apply.